Machine for embossing or ornamenting wood



(No Model.) 3 Sheets-Sheet 1. G. STABER & H. ABBEY. VMAGHINE FOR EMBOSSING 0R ORNAMENTING WOOD, PAPER, 85}!- No. 451,983. Patented May 12, 1891.

m: mm: PEYERS cm, w

(No Model.) 3- Sheets-Sheet 3.

G. STABER & 'H. ABBEY. MACHINE FOR EMBOSSING 0R ORNAMENTING WDOD, PAPER. .&c.

No. 451,983. Patented May 12, 1891.

.- UNITED STATES PATENT FF-ICE.

GEORGE STABER AND HARTXVELL ABBEY, OF BROOKLYN, NE\V YORK.

MACHlNE FOR EMBOSSING OR ORNAMENTING WOOD, PAPER,'&c.

SPECIFICATION forming part of Letters Patent No.451 ,983, dated May 12, 1891.

Application filed fieptember 6. 1890. Serial No. 364,168. (No model.)

To all whom it may concern.-

Be it known that we, GEORGE STABER and HARTWELL ABBEY, citizens of the United States, residing at Brooklyn,in the county of Kings and State of New York,have invented certain new and useful Improvements in Machines for Embossing or Ornamenting Vood, Paper, and other Materials; and we do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The present invention relates to machines for embossing or charring wood and other substances'for the purpose of ornamenting the surface thereof; and the improvements I relate,primarily, to the mechanism by which the pressure-roll is held up to or against the stock or work by the direct application of the force of a spring, and at the same time the relative position of the pressure-roll to the design-roller is subjected to the regulative action of an adjusting-screw to accommodate the rollers to stock or work of different sizes.

With these ends in view our invention'consists of the combination and construction of parts, as will be hereinafter fully described and claimed.

To enable others to understand our invention, We will proceed to a detail description thereof in connection with the accompanying drawings, in which Figure 1 is an elevation of a machine for embossing wood and other material constructed in accordance with our invention. Fig. 2 is a detail sectional view of the means for applying spring-pressure directly to the press-' ure-roll for regulating the position of said roll relatively to the design or embossing roll. Fig; 3 is a detail view of a modified form of the pressure and regulating device. Fig. 4 is a perspective view of the vertically-adj ustcble frame for supporting the pressure-roll. Fig. 5 is a detail view of the devices for supporting the design or embossing roll and permitting its ready removal and replacement, showing the cap-piece B thrown back. Fig. 6 is a similar view of the opposite side of the devices, showing the cap-piece let down. Fig. 7 is a perspective view of the cap-piece removed. Fig. 8 is a perspective view of the table for supporting the stock, showing the same in connection with the frame for supporting the pressure-roll and also showing on the table the adjustable strips for guiding the stock; and Fig. 9 is a sectional detail view of said table, showing one of the guide-strips in position.

Like letters and numerals of reference denote corresponding parts in all the figures of the drawings, referring to which- A designates the main frame, which comprises the fixed base a and the uprights or standards I) 6, arranged in two pairs, one pair being on each side of the machine.

B is the upper or design roller, and O is the lower or pressure roll.

As is usual in this class of machines to which our invention relates, both the upper and lower rolls are made hollow and suitable for the admission of pipes or burners which are provided for supplying hot-air or gas heat to the interiors of the rolls for the purpose of highly heating the same; but as no novelty is herein claimed on the means for heating said rolls we have not deemed it essential to illustrate the means employed for that purpose.

naled in the fixed bearings or bridge-piece 0 between the uprights of. the main frame, and in order to secure the rollin the bearings, and at the same time permit of the ready release of said roll and its expeditious removal from the frame, we provide the adjustable cappiece D,one at each side. This cap-piece has at one side the lugs cl, which are pivoted to one of the standards of the frame, and at the free end of said cap-piece we provide the bifurcated lug d, which is adapted when said cap islowered into position between the standards to embrace the other standard Z) of the pair of standards, a pivoted lever or catch E being provided on said standard 17 to take over the lug d, and thus lock or confine the swinging cap D in place. The cap is recessed or concaved on its lower edge to snugly fit over the hollow trunnions of the roll, and it its is obvious that when the roll is to be removed the only adjustment required is to release the locking lever or catch E and swing the cap upward and backward out of the path of the roll. The upper roll can then be easily removed from the main frame to change the design band or bands thereon, and it can be replaced with great ease and facility, which is highly desirable in this class of machines, where the patterns are quite frequently changed.

In embossing-machines for ornamenting wood which employ a stationary upper design-roller it is essential to provide a lower pressure-roller which constantly bears against the stock with a given uniform pressure, and which lower roll can be varied in relation to such design-roller to accommodate stock of different thicknesses or sizes.

In our improved machine we provide a simple and compact device which applies the necessary pressure to the pressure-roll direct from a spring, and the relative position of such roll is regulated by a screw, the detail construction of Which devices are as follows: A vertically-adjustable frame F is employed for supporting the lower roller 0, and this frame is substantially yoke-shaped, as indicated in Fig. 4 of the drawings, said frame consisting of the vertical sides ff and the transverse bridge-piece g, all of which constitute a single casting. The sides ff are recessed .or grooved vertically to adapt the standards I) b to fit snugly into the frame, .and thus guide the frame F in its vertitical movements in the main frame, and the upper edges of its side are concaved at f to form the bearing for the hollow trunnions of the pressure-rolls. In the center of the bridge g of this adjustable frame we provide avertical aperture h, and through this aperture passes the upper end of a vertical lifting rod or bar I, arranged in about the vertical centerof the machine. In the preferred embodiment of this part of our invention (shown in Figs. 1 and2 of the drawings) We screw-thread the upper part of this vertical lifting rod or bar and pass the screw-threaded portion loosely through the hole in the adjustable frame, and the lower end of the rod or bar is passed through a hole in the base of the frame, through which it moves vertically, the rod having a spline, as shown, which takes into a correspondinggroove in the hole of the base, whereby said rod may be prevented from turning as a screw.

The screw-threaded bar serves to transmit the pressure or force of the coiled spring to theadj ustable fram e, because the spring bears against the base of the main frame, and the upper hand-wheel 3 bears against the lower side .of the adjustable frame.

The height of the adjustable frame can be varied simply by turning the upper hand.- wheel 3 in the desired direction to raise or lower said frame and the pressure-roll, accord- .elevated portions of the table-frame.

ing to the size of the stock itis desired to feed to the machine, while the tension of the spring and the pressure of the lower roll upon the stock can be varied by simply adjusting the lower hand-wheel 2, said wheel 2 being lowered on the threaded lifting-rod if itis desired to compress the spring and increase the tension thereof, or raised when desired to slacken the spring and reduce the pressure of the lower roll against the stock.

In Fig. 3 we illustrate a modification of our invention in which we employ a single handwheel on the threaded rod and place the pressure-spring between the hand-wheel and the adjustable frame, so that the pressure of the coil-spring is applied directly to the yoke shaped frame. At the same time the elevation of the frame F can be varied and the tension of the coiled spring thereon regulated by the simple adjustment of the hand-wheel on the screw.

The operation and advantages of our invention will be readily understood and appreciated by those skilled in the art to which it relates from the foregoing description,taken in connection with the drawings.

By special reference to Fig. 8 of the drawings it will be seen that we have provided a support or table for the stock, which is designed to extend on opposite sides of the machine in a similar manner, and which, being secured to the frame F, carrying the pressureroll, will adapt itself to the upper surface of said roll by moving with the latter, and, being sustained alike under yielding pressure, will accommodate itself to the thickness of the material. This table is composed of two simi* lar side bars L, having their longitudinal cen= tral portions M provided with holes or the like for the reception of bolts or other suitable devices to fasten the same to the-outer sides of the side pieces of the frame F. These bars L are thence carried outwardly in opposite directions, as shown, and terminate in horizontal branches N, which are elevated to an altitude approximating that ofthe surface of the pressure-roll.

P indicates slotted cross-bars carried by the The slotted bars are designed to rcceivethe shanks of set-nuts Q, which are secured in one end of guide-strips R, and by means of said nuts the strips may be moved to and from each other and secured in any desired position upon the tables. The strips R are designed to serve as guidesfor the stock operated upon as it enters and leaves the machine.

lVhile we have shown threaded rods and nuts for setting up and adjusting the guidestrips, yet other suitable means might be employed for that purpose.

\Ve attach importance to the construction of the double table and to the fact that it is secured to the frame carrying the pressureroll, so that any movement of one will cause a corresponding and synchronous movement ICC of the other, thereby sustaining the stock in proper position with respect to the surface of the pressure-roll.

Having described our invention, what we claim is- 1. In a machine for embossing wood and other material, the combination, with an embossing or design roller and a pressure-roll,

.of a vertically-movable frame supporting said a pressure-roll carried by an adjustable frame,

of a threaded lifting-rod arranged centrally to the adjustable frame, a coiled pressurespring fitted on said rod, and the independent hand-wheels both fitted on the lifting-rod,

one wheel being in direct contact with the adjustable frame to positively move the same and the other wheel bearing against the pressure-sprin g for the purpose of varying the tension thereof, substantially as described.

3. In a machine for embossing or ornamenting wood and other materials, the-combination, with an embossing-roll, of a pressure-roll, the adjustable frame in which said pressureroll is j ournaled, provided with a central aperture, the vertically movable threaded rod fitted in the aperture of said frame, the coiled spring fitted on the rod, and the independent hand-wheels, both fitted on the rod and one arranged in contact with the adjustable frame and the other engaging the spring, substantially as described.

In testimony whereof we affix our signatures in presence of two witnesses.

GEORGE STABER. I-IARTWELL ABBEY; Witnesses:

ED. SoHUDooK, ABM. TILTON. 

